CN2234503Y - Sliding sleeve balance circular pressure controlled ball test valve - Google Patents
Sliding sleeve balance circular pressure controlled ball test valve Download PDFInfo
- Publication number
- CN2234503Y CN2234503Y CN95216146U CN95216146U CN2234503Y CN 2234503 Y CN2234503 Y CN 2234503Y CN 95216146 U CN95216146 U CN 95216146U CN 95216146 U CN95216146 U CN 95216146U CN 2234503 Y CN2234503 Y CN 2234503Y
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Abstract
The utility model relates to a sliding sleeve balance circular pressure controlled ball test valve, which uses the principle of pressure balance for a sliding sleeve and a ball switch valve structure and realizes the opening and closing functions for operating the ball valve under constant pressure and lower operation pressure. The utility model has the advantages of simple and compact structure, reliability, reliable sealing for testing switching wells, pressurize operation for hohlraum, all-pass diameter function for test valves. The utility model is mainly composed of the operating structure of the ball valve, a power control structure, and a pressure equilibrium structure and is used for testing slopes, cluster wells, drilling platforms, and casing wells in the field of test oil test for oil exploration. The utility model can realize the mutual operation for testing, acidizing, and fracturing. The operation of the test has the advantages of simpleness, convenience, high safety, and reliability.
Description
The utility model belongs to tester field under the oil exploration formation testing testing well.
Background technology of the present utility model: the ring pressure-controlled testing valve that uses comes nitrogen gas pressure in Balance Control piston both sides annular fluid and the nitrogen chamber by a metering valve pocket at present, make it balance, adopt metering valve pocket below piston promoted by annular pressure, make the specific hydraulic fluid pressurized flow to another side by the metering valve pocket, promoting its top piston compressed nitrogen again realizes, the metering valve pocket also must have the delay function requirement, to guarantee the normal running of testing valve.Characteristics are pressure balance principles, and complete machine and metering valve nested structure complexity, make difficulty; The testing valve axial dimension is oversize, inconvenient operation; Maintenance requires too high; And the test operation controlled pressure changes along with factor affecting such as well depth, well temperature, down-hole pressure, and the testing valve test limited speed of going into the well, and the test design is complicated.
The purpose of the utility model design: adopt sliding sleeve bypass type pressure balance principle, simplified structure, with simple, reliable pressure balance mechanism, realize sliding sleeve piston type self-balancing pressure, and the simple and reliable ring pressure-controlled ball-type testing valve of test operation constant pressure.
Design scheme of the present utility model is: the downhole testing valve of this novel indication is applicable to 127--339.7MM all size cased well formation testing field tests.The utility model structurally as shown in drawings, is made up of ball valve operating structure, dynamic Control structure and pressure balancing structure three parts.The scheme of ball valve operating structure is: following Cuo (7) is connected as a single entity by screw thread and splined shaft (3), and adopts ball-type switch valve structure.It mainly is made up of ball valve (5), splined shaft (3), following Cuo (7), marshall springs (6), ball valve overcoat (2), operation panel pin (4), connection pipe nipple (8), connection axle parts such as (11).Its operating principle is, when pressurizeing, annular space presses the hole pressurization by ring, or spring is when restore to promote connecting the upper and lower motion of axle (11), drive operation panel pin (4) and stir ball valve (5) rotation, realize that ball valve opens (the ball valve through hole is connected with the testing valve through hole) and close (ball valve sphere and the realization of testing valve through hole seal and close).Following seat (7) is coupled to screw thread with splined shaft (3), for ball valve provides assembled length space and precision; Marshall springs (6) guarantees ball valve low pressure seal performance for ball valve provides pretightning force.The dynamic Control structure mainly by last power cover (15), the pressurization axle (16), power sub (12), returning spring (14), power section axle (20), nitrogen chamber urceolus (19), fill nitrogen joint formations such as (18).Its operating principle is: nitrogen chamber (upper and lower chamber) charges into the high pressure purity nitrogen gas from filling nitrogen joint (12), keep balance in the test layer position by nitrogen pressure after the pressure balance and annular fluid pressure, the assembling of returning spring (14) just compressive force makes ball valve keep closed condition, when ground applies additional operations pressure in annular fluid, compression reaction spring (14) drives the operation panel pin and opens ball valve; Discharge this pressure, returning spring (14) restores ball valve and maintains the closed position.Repeat pressurization, release procedure, thereby this ball valve can be realized the requirement of the multiple switching ball valve (switch well) of test jobs.Dynamic Control main structural scheme is: adopt spring force to keep the ball valve closed condition.The primary structure scheme of pressure balancing structure is to adopt the structural concept of the empty fluid pressure of bypass valve opening transmission ring to dummy piston (21), to realize compressed nitrogen, guarantee pressurization axle (16) upper piston below nitrogen pressure and its top test layer position annular fluid pressure balance.It mainly is made of dummy piston (21), pressure transmission joint (22), by-pass connection (24), spline urceolus (25), bypass spring (27), lower contact (28), spring born work arbor parts such as (27).Its operating principle is: in the process of going into the well, bypass spring (27) makes by-pass prot be held open state, along with following well depth, with annular fluid pressure pressure transmission dummy piston (21) lower end, promote dummy piston (21) compressed nitrogen, make nitrogen pressure and annular fluid pressure remain balance, guarantee that ball valve closes reliably.When reaching the test layer position, apply axial force to testing valve and set test packer the time, compression bypass spring (27), bypass axle (24) moves downward closes by-pass prot, when guaranteeing that the unlatching of operation ball valve is exerted pressure on ground, pressure only imports the annular space pressurization hole on the power sub (12) into, realizes normal function of opening ball valve (5).Test jobs finishes, on carry testing valve, by-pass prot is opened automatically, autobalance nitrogen and annular pressure.
The utility model is compared with background technology, and the one, adopt sliding sleeve bypass type pressure balance principle, principle is simple and reliable, compact conformation, simple; The 2nd, cancelled the structural upper and lower grease chamber of background technology, can realize structure than background technology structure length much shorter; The 3rd, can realize level pressure operation ball valve open and close function and the low advantage of operating pressure, widen the range of application of formation testing test suite pipe well, guarantee casing strength, improve the safety of operation; The 4th, adopt ball-type switch valve structure, sealing reliably, realize all-pass footpath testing valve function; The 5th, it is lower to charge into the high-purity nitrogen atmospheric pressure, improves the safety of testing equipment.
Description of drawings
Fig. 1 is the schematic diagram of ball valve operating structure in the utility model.
Fig. 2 is the sectional structure schematic diagram of C--C among Fig. 1.
Fig. 3 is the schematic diagram of the utility model medium power structure.
Fig. 4 is the sectional structure schematic diagram (inflated with nitrogen structural representation) of A--A among Fig. 3.
Fig. 5 is the schematic diagram of pressure balancing structure in the utility model.
Fig. 6 is the sectional structure schematic diagram of C--C among Fig. 5.
Fig. 7 is the sectional structure schematic diagram (pressure relief schematic diagram) of B--B among Fig. 5.
1--7 does with narration the utility model in conjunction with the accompanying drawings
Sliding sleeve pressure balance type ring pressure-controlled ball-type testing valve is made of ball valve operating structure, dynamic Control structure and pressure balancing structure.Top connection in the ball valve operating structure (1) is threaded with splined shaft (3) by sealing ring (32), top connection (1) is connected with ball valve urceolus (2) with sealing ring (33), ball valve urceolus (2) is connected with splined shaft (3) spline, operation panel pin (4) is contained in the hole of stirring ball valve (5), splined shaft (3) is threaded with following (7), following seat (7) adopts sealing ring (35) and is connected pipe nipple (8) connection, stirring ball valve (5) adopts sealing ring (34) to be contained in down in the seat (7), connecting pipe nipple (8) is threaded with adapter sleeve (10), end cap (9) be connected axle (11) and be threaded, ball valve urceolus (2) adopts sealing ring to be threaded with power sub (12), power sub (12) adopts sealing ring (37 with last power cover (15), 38) be threaded, marshall springs (6) is positioned at a survey of stirring ball valve (5); Ball-type metallic seal switch closes structure, connects axle (11) and drives operation panel pin (4) and stir ball valve and rotarily open and close; Following seat (7) is connected on the splined shaft (3) with screw thread, and restriction ball valve axial location size guarantees the axial precision of ball valve; Marshall springs (6) guarantees ball valve low pressure seal function for ball valve provides pretightning force.Connecting axle (11) in the dynamic Control structure is threaded with pressurization axle (16), returning spring (14) is positioned at the chamber of pressurization axle (16) and last power cover (15) formation, last power cover (15) with fill nitrogen joint (18) and adopt sealing ring (27,17) be threaded, fill nitrogen joint (18) and adopt sealing ring (17 with nitrogen chamber urceolus (19), 37) be threaded, adopt sealing ring (39,36) and be threaded with power section axle (20).The assemble compressible power of returning spring (14) makes ball valve keep closing, and when annular space operating pressure compression reaction spring, drives operation panel pin (4) and stirs ball valve (5) unlatching; Discharge this pressure, returning spring makes ball valve (5) close valve; Its structure has repeatedly open and close ball valve function, nitrogen chamber urceolus (19) adopts sealing ring (33) to be threaded with pressure transmission joint (22) in the pressure balancing structure, pressure transmission joint (22) is threaded with by-pass connection (24) by connector (23) and sealing ring (41), by-pass connection (24) adopts sealing ring (42) spline to be connected with spline urceolus (25), be threaded with central spindle of the spring (26), spline urceolus (25) is threaded with lower contact (28), pipe close (29), nitrogen plug (30) and screw (31) are adopted sealing ring (41) and are threaded in and fill on nitrogen joint (18) and the pressure transmission joint (22), dummy piston (21) is gone up in power section axle (20) and is floated, the groove of dummy piston (21) is embedded with encapsulant (37,38,40), bypass spring (27) is positioned at central spindle of the spring (26) and lower contact (28) formation chamber.Have ring on the power sub (12) and press hole (43), and in ring is pressed the hole, pressure cuffs (13) is housed, the cavity that fills nitrogen joint (18), nitrogen chamber urceolus (19), power section axle (20) and dummy piston (21) formation is nitrogen chamber (44), has by-pass prot (45) on the by-pass connection (24).Fill nitrogen joint (18) and be provided with inflated with nitrogen structure (29,30,31,41), sensing joint (22) is provided with pressure relief (29,30,41).Annular pressure is by the by-pass prot pressure transmission, the compressed nitrogen equilibrium pressure.In the process of going into the well, bypass spring (27) guarantees that by-pass prot is held open state, annular pressure is gone up by-pass prot by by-pass connection (24) and is passed to the dummy piston below, high-purity high pressure nitrogen in the compressed nitrogen air cavity, make pressurization axle (16) upper piston upper and lower pressure remain balance, avoid going into the well and open ball valve (5) midway; To test layer the test packer is added axial compression, compression bypass spring (27), bypass axle (24) moves downward closes by-pass prot, and pressure only enters the annular space pressurization hole on the power sub (12) when guaranteeing normally to add ring press operation ball valve.EOT, on carry testing valve, bypass spring (27) makes by-pass prot stay open state.
Claims (3)
1, a kind of sliding sleeve pressure balance type ring pressure-controlled ball-type testing valve, it is characterized in that by the ball valve operating structure, dynamic Control structure and pressure balancing structure constitute, top connection in the ball valve operating structure (1) is threaded with splined shaft (3), ball valve urceolus (2) is connected with splined shaft (3) spline, operation panel pin (4) is contained in the hole of stirring ball valve (5), splined shaft (3) is threaded with following (7), stirring ball valve (5) is contained in down in the seat (7), connecting pipe nipple (8) is threaded with adapter sleeve (10), end cap (9) be connected axle (11) and be threaded, ball valve urceolus (2) is threaded with power sub (12), power sub (12) is threaded with last power cover (15), and marshall springs (6) is positioned at a survey of stirring ball valve (5); Connecting axle (11) in the dynamic Control structure is threaded with pressurization axle (16), returning spring (14) is positioned at the chamber that pressurization axle (16) and last power cover (15) constitute, last power cover (15) with fill nitrogen joint (18) and be threaded and fill nitrogen joint (18) and be threaded with nitrogen chamber urceolus (19), be threaded with power section axle (20); Nitrogen chamber urceolus (19) is threaded with pressure transmission joint (22) in the pressure balancing structure, pressure transmission joint (22) is threaded with by-pass connection (24), by-pass connection (24) is connected with spline urceolus (25) spline, be threaded with central spindle of the spring (26), spline urceolus (25) is threaded with lower contact (28), pipe close (29), nitrogen plug (30) and screw (31) fill on nitrogen joint (18) and the pressure transmission joint (22) by being threaded in, dummy piston (21) is gone up in power section axle (20) and is floated, and bypass spring (27) is positioned at central spindle of the spring (26) and constitutes the chamber with lower contact (28).
2, sliding sleeve pressure balance type ring pressure-controlled ball-type testing valve according to claim 1, it is characterized in that: have ring on the power sub (12) and press hole (43), and in ring is pressed the hole, pressure cuffs (13) is housed, the cavity that fills nitrogen joint (18), nitrogen chamber urceolus (19), power section axle (20) and dummy piston (21) formation is nitrogen chamber (44), has by-pass prot (45) on the by-pass connection (24).
3, sliding sleeve pressure balance type ring pressure-controlled ball-type testing valve according to claim 1, it is characterized in that: fill nitrogen joint (18) and be provided with inflated with nitrogen structure (29,30,31,41), sensing joint (22) is provided with pressure relief (29,30,41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95216146U CN2234503Y (en) | 1995-06-27 | 1995-06-27 | Sliding sleeve balance circular pressure controlled ball test valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95216146U CN2234503Y (en) | 1995-06-27 | 1995-06-27 | Sliding sleeve balance circular pressure controlled ball test valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234503Y true CN2234503Y (en) | 1996-09-04 |
Family
ID=33865302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95216146U Expired - Fee Related CN2234503Y (en) | 1995-06-27 | 1995-06-27 | Sliding sleeve balance circular pressure controlled ball test valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234503Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818629A (en) * | 2010-03-10 | 2010-09-01 | 北京华油奥依尔技术开发有限公司 | Method for converting down-hole pressure into power for opening and closing oil testing valve |
| CN103742107A (en) * | 2014-01-20 | 2014-04-23 | 中煤科工集团西安研究院有限公司 | Downhole mechanical switching valve for coal-bed gas well testing |
| CN104989322A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Shear pin type bypass valve |
| CN105464620A (en) * | 2015-07-27 | 2016-04-06 | 宝鸡畅油石油设备有限公司 | Ground control test safety valve |
| CN106481302A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of method setting oil-separating layer and special from boost controller |
| CN107558998A (en) * | 2016-06-30 | 2018-01-09 | 中国石油天然气股份有限公司 | Oil-gas well stratum testing equipment and testing method thereof |
| CN107829709A (en) * | 2017-11-11 | 2018-03-23 | 中石化石油工程技术服务有限公司 | New Model Pressure Controlled Full Bore Testing Valve |
| CN110566158A (en) * | 2019-09-16 | 2019-12-13 | 宝鸡畅油石油设备有限公司 | Single stroke oil pipe pressure testing valve |
-
1995
- 1995-06-27 CN CN95216146U patent/CN2234503Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818629A (en) * | 2010-03-10 | 2010-09-01 | 北京华油奥依尔技术开发有限公司 | Method for converting down-hole pressure into power for opening and closing oil testing valve |
| CN103742107B (en) * | 2014-01-20 | 2016-04-06 | 中煤科工集团西安研究院有限公司 | Coal bed gas well well testing down-hole mechanical switch valve |
| CN103742107A (en) * | 2014-01-20 | 2014-04-23 | 中煤科工集团西安研究院有限公司 | Downhole mechanical switching valve for coal-bed gas well testing |
| CN104989322B (en) * | 2015-07-17 | 2018-10-16 | 中国石油集团渤海钻探工程有限公司 | Shearing pin type bypass valve |
| CN104989322A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Shear pin type bypass valve |
| CN105464620A (en) * | 2015-07-27 | 2016-04-06 | 宝鸡畅油石油设备有限公司 | Ground control test safety valve |
| CN105464620B (en) * | 2015-07-27 | 2017-09-15 | 宝鸡畅油石油设备有限公司 | Ground control test safety valve |
| CN106481302A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of method setting oil-separating layer and special from boost controller |
| CN107558998A (en) * | 2016-06-30 | 2018-01-09 | 中国石油天然气股份有限公司 | Oil-gas well stratum testing equipment and testing method thereof |
| CN107558998B (en) * | 2016-06-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Oil-gas well stratum testing equipment and testing method thereof |
| CN107829709A (en) * | 2017-11-11 | 2018-03-23 | 中石化石油工程技术服务有限公司 | New Model Pressure Controlled Full Bore Testing Valve |
| CN107829709B (en) * | 2017-11-11 | 2020-07-14 | 中石化石油工程技术服务有限公司 | Full-bore pressure-controlled test valve |
| CN110566158A (en) * | 2019-09-16 | 2019-12-13 | 宝鸡畅油石油设备有限公司 | Single stroke oil pipe pressure testing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Pengfei Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |