Multilateral system分支井工具英文资料.docx

1、Multilateral system分支井工具英文资料Multilateral systemContentLevel Definitions 2Level 2 Multilateral System 3LEVEL 3 MULTILATERAL SYSTEM 4LEVEL 4 MULTILATERAL SYSTEM 6LEVEL 5 MULTILATERAL SYSTEM 8Level 6 The Formation Junction Multilateral System 9Level 6 DOWNHOLE SPLITTER SYSTEM 10Level 6 Deepset Splitter

2、 SYSTEM 12Test Facility 14Baker Oil Tools is the industry leader in providing multilateral completions for all levels of functionality. The case histories listed below are not a complete list of every BOT completion, but rather a sample of the different kinds of multilateral installations performed

3、to date. Level DefinitionsLevel 2 Multilateral System About TAML CategorizationTAML (Technology Advancement of Multilaterals) is a group of operators with multilateral experience who developed a categorization system for multilateral wells based on the amount and type of support provided at the junc

4、tion. This categorization makes it easier for operators to recognize and compare the functionality and risk-to-reward evaluations of one multilateral completion design to another. Recognized TAML levels increase in complexity from Level 1 (simple open hole mainbore) through Level 6 as shown.Level De

5、finitionsA Baker Oil Tools Level 2 multilateral system delivers a junction which incorporates a cased and cemented mainbore with an open-hole lateral that can be completed barefoot or with a slotted liner or screen. If a permanent orientation and depth control point is desired for future re-entry wo

6、rk, a permanent multilateral packer can be used with a WindowMaster?Whipstock a casing exit system. However, if full-bore access through the mainbore is the major concern, a retrievable multilateral packer can be used below the WindowMaster Whipstock. A Level 2 multilateral with a permanent orientat

7、ion point is constructed by setting a permanent multilateral packer (MLZXP?Liner Hanger/Packer or ML TorqueMaster?Packer) in the cased mainbore directly below the desired kickoff depth. Following a multilateral packer orientation run, the surface-oriented WindowMaster milling assembly is run and anc

8、hored into the multilateral packer. Window milling and lateral drilling are performed and the WindowMaster whipstock assembly is then retrieved. If production isolation is required during the well life, a Baker Oil Tools sliding sleeve is run in conjunction with a tieback string and a Baker Oil Tool

9、s production packer that is set above the casing exit point. When open, the sleeve allows for commingled production of both zones to the surface. However, the sleeve can be closed to shut off flow from the lateral formation. The sliding sleeve completion option DOES NOT allow for re-entry into the u

10、pper lateral. If re-entry into the upper lateral is desired, a Baker Oil Tools Lateral Entry Nipple (LEN? can be used in place of the sliding sleeve. This LEN tool provides for thru-tubing re-entry into the lateral bore when required. Production isolation of the upper lateral is still possible throu

11、gh the use of an isolation sleeve that can be placed across the lateral bore opening of the LEN tool. A retrievable packer Level 2 system is installed in the same manner as the permanent packer option; however, the multilateral packer (retrievable TorqueMaster) and WindowMaster are run in tandem, or

12、iented simultaneously using MWD and the retrievable TorqueMaster, then set with annular pressure. After drilling the lateral, the WindowMaster and retrievable TorqueMaster assembly are retrieved, leaving full-gauge access into the mainbore. LEVEL 3 MULTILATERAL SYSTEMLevel DefinitionsA Baker Oil Too

13、ls Level 3 multilateral system delivers a mechanically supported junction in which the mainbore is cased and cemented with the lateral open. The lateral is completed with a lateral liner anchored, but not cemented, to the mainbore. There are essentially three basic configurations for providing a Lev

14、el 3 multilateral junction.All three configurations involve first setting a multilateral packer (MLZXP Liner Hanger/Packer or TorqueMaster Packer) in the cased mainbore at a depth to allow for the desired kickoff point. Following a multilateral packer orientation run, the surface-oriented WindowMast

15、er milling assembly is run in and anchored into the multilateral packer. Window milling and lateral drilling are then performed, and the WindowMaster?Whipstock assembly is retrieved.In the first Level 3 multilateral option, a flow-through diverter is run then anchored into the multilateral packer. A

16、 slotted liner hanging from a liner hanger/production packer is then run into the lateral, and the packer is set in the mainbore. The slotted liner and flow-through diverter allow for commingled production. In the second Level 3 multilateral option, the flow-through diverter is eliminated. Instead,

17、a bent joint assembly is used with surface manipulation of the drillpipe in order to divert the slotted liner into the lateral. As in the previous configuration, the liner hanger/production packer is set, supporting the lateral to the mainbore. Neither option allows access to the mainbore formation,

18、 due to the presence of the slotted liner across the junction.A third option, using the Baker Oil Tools HOOK?Hanger system, allows for selective re-entry into the lateral and the mainbore. The HOOK Hanger is a casing joint with a pre-cut main-bore window, internal re-entry orientation profile, and a

19、 hook below the pre-milled window that is designed to catch and hang the lateral liner in the bottom of the casing exit window. Re-entry is accomplished using either a lateral or main-bore re-entry module as a bottomhole assembly on tubing or coiled tubing.LEVEL 4 MULTILATERAL SYSTEMLevel Definition

20、sA Baker Oil Tools Level 4 multilateral system delivers a junction in which the mainbore and lateral are cased and cemented, providing maximum mechanical support of the junction area. Baker Oil Tools offers two basic configurations for providing a Level 4 multilateral junction, the Root SystemSM and

21、 the HOOK Hanger System.The Root System junction is created by first deploying a multilateral packer (MLZXP Liner Hanger/Packer or ML TorqueMaster Packer) into the mainbore casing at the desired junction depth. Following a multilateral packer orientation trip, an ML Whipstock?milling assembly is run

22、 and anchored into the multilateral packer. The main-bore exit window is then created using the ML Whipstock System mills, and the lateral well is drilled. Next, a liner is placed in the lateral wellbore leaving an overlap section in the mainbore. The lateral liner is then cemented in place. Once th

23、e cement has cured, perforating, stimulation, and lateral completion operations are performed.After these procedures are complete, a washover assembly is run to cut and retrieve the liner overlap in the main-bore casing. During this process, the ML Whipstock is also retrieved with the washover assem

24、bly passing around the exterior of the whipstock and engaging into a retrieval sub located in the assembly below the whipstock. The final multilateral junction yields a full main-bore ID at the junction area. With the inclusion of additional Baker completion equipment such as sliding sleeves or Bake

25、r Oil Tools Lateral Entry Nipple (LEN?, production isolation and re-entry capability into either wellbore is also possible with this Level 4 multilateral system.The HOOK Hanger System allows for selective re-entry into either the lateral or the mainbore. This system utilizes a casing joint with pre-

26、cut window, internal re-entry orientation profile and a hook below the pre-cut window designed to catch and hang a lateral liner in the casing exit window. After a multilateral packer (MLZXP Liner Hanger/Packer or ML TorqueMaster) is set below the desired casing exit depths, a multilateral packer or

27、ientation trip is made, and the WindowMaster milling system is run and anchored in the orientation packer. Once window milling and lateral drilling are complete, the WindowMaster whipstock assembly is retrieved.The HOOK Hanger and lateral liner assembly are then run in and diverted into the lateral

28、wellbore using a bent joint until the hook on the HOOK Hanger engages the casing exit window. Once the HOOK Hanger is hung off, the assembly is cemented in place, resulting in a Level 4 junction offering full mechanical support in addition to positive thru-tubing re-entry into either lateral.LEVEL 5

29、 MULTILATERAL SYSTEMLevel Definitions A Baker Oil Tools Level 5 multilateral system delivers both a mechanically supported and hydraulically isolated multilateral completion with full re-entry and production isolation capability into either bore. Options are available that allow for either independe

30、nt production of each producing zone to surface or commingled production of both zones. Level 5 multilaterals offer the best solution for multilateral wells in weak, incompetent environments susceptible to wellbore collapse.Baker Oil Tools ROOT SYSTEM is the basic system foundation for creating a Le

31、vel 5 multilateral completion. A Baker Oil Tools MLZXP Liner Hanger Packer or ML TorqueMaster Packer is run in conjunction with Baker Oil Tool ML Whipstock System to create the casing exit window. After drilling the lateral, the lateral casing is run and cemented in place with the top of the liner e

32、xtending back through the casing exit and into the mainbore portion of the well. The lateral bore can then be perforated, stimulated, and completed as required.After completing the lateral, a washover assembly tool is used to wash over and retrieve not only the portion of the lateral liner extending into the mainbore, but also the original ML whipstock and anchor assembly. At this point, a Root System Level 4 has been created offering full mechanical integrity across the junction. Additional completion equipment is installed to create the hydraulic integrity required for a Level 5