CN105464628A - Suspension type underground hydraulic rod type pumping production device - Google Patents
Suspension type underground hydraulic rod type pumping production device Download PDFInfo
- Publication number
- CN105464628A CN105464628A CN201511013562.0A CN201511013562A CN105464628A CN 105464628 A CN105464628 A CN 105464628A CN 201511013562 A CN201511013562 A CN 201511013562A CN 105464628 A CN105464628 A CN 105464628A
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- CN
- China
- Prior art keywords
- hydraulic
- oil
- pipe
- rod
- hydraulic cylinder
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
Abstract
The invention provides a suspension type underground hydraulic rod type pumping production device which comprises a hydraulic cylinder, a hydraulic pipe communicated with the hydraulic cylinder, a hydraulic control cabinet and a rod type oil-well pump. A hollow sucker rod is communicated to the upper end of the hydraulic cylinder. The hollow sucker rod and the other end of the hydraulic pipe are connected with the hydraulic control cabinet. The rod type oil-well pump is connected with the hydraulic cylinder. The rod type oil-well pump is arranged in an oil pipe. The hydraulic cylinder is arranged above the oil pipe. The lower portion of the oil pipe is provided with a supporting slip. The oil pipe is sleeved with a packer. Pipe rod eccentric wear is eliminated, and the oil well maintenance-free period can be prolonged; the hollow sucker rod is adopted as a hydraulic transmission pipe, the heat of high-temperature hydraulic oil can be transferred to a well shaft, and paraffinning is effectively prevented. The device adopts a casing pipe oil extraction mode, only one or two oil pipes are needed, the operation process is simplified, and the operation cost is reduced.
Description
Technical field
The invention belongs to technical field of mechanical oil extraction, be specifically related to a kind of suspension type underground hydraulic pressure insert pump extracting device of oil.
Background technology
Hydraulic pressure (liquid drives) Rodless oil extraction technology basic functional principle is that electric control system controls hydraulic control system produces hydraulic oil alternately, hydraulic oil is transferred to liquid by pressure transmission pipe and drives propeller and make it do linear reciprocating motion, thus drive plunger displacement pump to move back and forth, realize object crude oil being given rise to ground from down-hole.This technology has that pump detection period is long, running cost is low, maintenance cost is low, system effectiveness advantages of higher at present.But technique needs hydraulic tube together to enter down with oil pipe, and operation procedure more complicated, duty cycle is longer.
Meanwhile, because temperature is low, lower than the set point of wax, cause wax deposition, make oil pipe section diminish so that block up stockaded village, affect oil well and normally produce, even cause oil well to stop production.
Summary of the invention
The object of the invention is to overcome the problems referred to above of the prior art, simplify work flow, reduce operating cost, realize effectively preventing wax deposition simultaneously.
For this reason, the invention provides a kind of suspension type underground hydraulic pressure insert pump extracting device of oil, comprise hydraulic cylinder, the hydraulic tube be communicated with hydraulic cylinder, hydraulic control cabinet and rod-type pumping unit, described hydraulic cylinder upper end is communicated with hollow rod, described hollow rod is all connected with hydraulic control cabinet with the hydraulic tube other end, described rod-type pumping unit is connected with hydraulic jack, described rod-type pumping unit is located in oil pipe, described hydraulic jack is located at above oil pipe, the bottom of described oil pipe is provided with supporting slip, is arranged with packer outside described oil pipe.
Described hydraulic control cabinet comprises electric control box and heating control.
Described packer is KZ311 packer.
Described hydraulic cylinder rise is 0-1.5m.
Described hydraulic tube material is 316L stainless steel.
The invention has the beneficial effects as follows:
1, this device eliminates side-abrasion of rod string, can improve oil well repair free period;
2, this device adopts hollow rod as hydraulic drive tube, high temperature heat of hydraulic oil can be passed to pit shaft, effectively prevent wax deposition;
3, this device adopts the mode of Casing for extracting oil, only needs 1 or 2 oil pipes, simplifies work flow, reduces operating cost.
Be described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, hydraulic cylinder; 2, hollow rod; 3, hydraulic tube; 4, hydraulic control cabinet; 5, oil pipe; 6, packer; 7, rod-type pumping unit; 8, sleeve pipe; 9, supporting slip.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of suspension type underground hydraulic pressure insert pump extracting device of oil, comprise hydraulic cylinder 1, the hydraulic tube 3 be communicated with hydraulic cylinder 1, hydraulic control cabinet 4 and rod-type pumping unit 7, described hydraulic cylinder 1 upper end is communicated with hollow rod 2, described hollow rod 2 is all connected with hydraulic control cabinet 4 with hydraulic tube 3 other end, described rod-type pumping unit 7 is connected with hydraulic jack, described rod-type pumping unit 7 is located in oil pipe 5, described hydraulic jack is located at above oil pipe 5, the bottom of described oil pipe 5 is provided with supporting slip 9, is arranged with packer 6 outside described oil pipe 5.
Before going into the well, hydraulic cylinder 1 is connected with hydraulic tube 3, hollow rod 2, and hydraulic control cabinet 4 is debugged, guarantee liquid driving device sensitive reversing; Then by oil pipe 5(tail pipe), packer 6, rod-type pumping unit 7 be after ground sets connection, oil pipe 5 bottom connects supporting slip 9, driven down to enter to design well depth by hollow rod 2, after arriving design attitude, supporting slip 9(hanger) slip insert clamping sleeve pipe 8, make the gravity of oil pipe 5 be sitting on supporting slip 9, last rod-type pumping unit 7 connects packer 6 and completes setting of packer 6 in precalculated position, oil reservoir top.
Before going into the well, the packing element of packer 6 is stretched and be slightly less than oil pipe 5 external diameter, after arriving down precalculated position, down-hole, with supporting slip 9(hanger) for fulcrum, under gravity the pin on packer 6 is cut off, packer 6 packing element restore to the original state and with borehole wall Interference contact, thus produce packer 6 packing element primary seal, along with liquid discharged by pump, part liquid enters again pump barrel inner chamber and expands packing element further, realizes packer 6 packing element secondary seal.During deblocking, carry hollow rod 2 on only needing and make packer 6 packing element undergauge (when packer 6 packing element external diameter is stretched to and is slightly less than oil pipe 5 external diameter, oil pipe 5 starts to contact packer 6 packing element and no longer extends).
Suspension type underground hydraulic pressure insert pump extracting device of oil provided by the invention still adopts liquid to drive oil recovery, but hydraulic power flexible pipe is changed to hollow rod 2, drives rod-type pumping unit 7 together lower going-into-well cylinder; In addition, rod-type pumping unit 7 connects packer 6, setting in precalculated position, oil reservoir top, thus separates entrance and the outlet of rod-type pumping unit 7, makes sleeve pipe 8 become new oil flow channel.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of suspension type underground hydraulic pressure insert pump extracting device of oil as shown in Figure 1, wherein, hydraulic control cabinet 4 comprises electric control box and heating control, electric control box, is mainly used in the startup controlling motor, the commutation of liquid driving device; By heating control heating fluid force feed, heat is delivered to hollow rod 2 again to pit shaft with hydraulic oil, effectively can prevent wax deposition.
In the present embodiment, packer 6 is KZ311 packer, adopts the mode of expansion and self-styled two-stage sealing, completes setting and deblocking, realize sleeve pipe 8 and recover the oil by hollow rod 2.
Hydraulic cylinder 1 rise is 0-1.5m, and normal thrust can reach 25000-35000N, and medium temperature meets 0-150 DEG C.Hydraulic tube 3 material is 316L stainless steel, and have wear-resistant anticorrosive, swell increment is little and efficiency of transmission is high advantage, continuous length can reach 5000m, withstand voltagely reaches 100MPa.
Hydraulic cylinder 1 adopts be threaded with hydraulic tube 3, hollow rod 2, and interface pressure-bearing reaches 100MPa.
Rod-type pumping unit 7, for fixing double containment insert pump in safety barrel top, adopts machinery, leather cup bearing seal mode.
In sum, suspension type underground hydraulic pressure insert pump extracting device of oil provided by the invention eliminates side-abrasion of rod string, can improve oil well repair free period; Adopt hollow rod 2 as hydraulic drive tube, high temperature heat of hydraulic oil can be passed to pit shaft, effectively prevent wax deposition; The mode that this device adopts sleeve pipe 8 to recover the oil, only needs 1 or 2 oil pipes 5, simplifies work flow, reduce operating cost.
The present embodiment does not have specifically described part all to belong to common practise and the known technology of the art, describes in detail no longer one by one herein.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (5)
1. a suspension type underground hydraulic pressure insert pump extracting device of oil, comprise hydraulic cylinder (1), the hydraulic tube (3) be communicated with hydraulic cylinder (1), hydraulic control cabinet (4) and rod-type pumping unit (7), it is characterized in that: described hydraulic cylinder (1) upper end is communicated with hollow rod (2, described hollow rod (2) is all connected with hydraulic control cabinet (4) with hydraulic tube (3) other end, described rod-type pumping unit (7) is connected with hydraulic jack, described rod-type pumping unit (7) is located in oil pipe (5), oil pipe (5) top is located at by described hydraulic jack, the bottom of described oil pipe (5) is provided with supporting slip (9), packer (6) is arranged with outside described oil pipe (5).
2. a kind of suspension type underground hydraulic pressure insert pump extracting device of oil according to claim 1, is characterized in that: described hydraulic control cabinet (4) comprises electric control box and heating control.
3. a kind of suspension type underground hydraulic pressure insert pump extracting device of oil according to claim 1 and 2, is characterized in that: described packer (6) is KZ311 packer.
4. a kind of suspension type underground hydraulic pressure insert pump extracting device of oil according to claim 1 and 2, is characterized in that: described hydraulic cylinder (1) rise is 0-1.5m.
5. a kind of suspension type underground hydraulic pressure insert pump extracting device of oil according to claim 1 and 2, is characterized in that: described hydraulic tube (3) material is 316L stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013562.0A CN105464628A (en) | 2015-12-31 | 2015-12-31 | Suspension type underground hydraulic rod type pumping production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013562.0A CN105464628A (en) | 2015-12-31 | 2015-12-31 | Suspension type underground hydraulic rod type pumping production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105464628A true CN105464628A (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511013562.0A Pending CN105464628A (en) | 2015-12-31 | 2015-12-31 | Suspension type underground hydraulic rod type pumping production device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105464628A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968926A (en) * | 2017-05-27 | 2017-07-21 | 乜彦飞 | A kind of packing formula energy saving oil extraction pump |
| CN111561296A (en) * | 2020-04-30 | 2020-08-21 | 中国石油天然气股份有限公司 | Underground switch device and method for controlling pressure in shaft |
Citations (6)
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|---|---|---|---|---|
| CN2549176Y (en) * | 2002-06-10 | 2003-05-07 | 赵怀文 | Signal-feedback pumping unit |
| CN1450247A (en) * | 2003-02-17 | 2003-10-22 | 北京迪威尔石油天然气技术开发有限公司 | Rod free hydraulic oil pumping system |
| CN1508382A (en) * | 2002-12-16 | 2004-06-30 | 宋逸飞 | Hydraulic self-controlled pumping unit |
| CN1963141A (en) * | 2006-11-16 | 2007-05-16 | 叶少华 | Hydraulic oil production method and device |
| US20120328457A1 (en) * | 2005-04-11 | 2012-12-27 | Brown T Leon | Unlimited Stroke Drive Oil Well Pumping System |
| CN205445556U (en) * | 2015-12-31 | 2016-08-10 | 中国石油天然气股份有限公司 | Suspension type is hydraulic pressure rod -type pump oil production device in pit |
-
2015
- 2015-12-31 CN CN201511013562.0A patent/CN105464628A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2549176Y (en) * | 2002-06-10 | 2003-05-07 | 赵怀文 | Signal-feedback pumping unit |
| CN1508382A (en) * | 2002-12-16 | 2004-06-30 | 宋逸飞 | Hydraulic self-controlled pumping unit |
| CN1450247A (en) * | 2003-02-17 | 2003-10-22 | 北京迪威尔石油天然气技术开发有限公司 | Rod free hydraulic oil pumping system |
| US20120328457A1 (en) * | 2005-04-11 | 2012-12-27 | Brown T Leon | Unlimited Stroke Drive Oil Well Pumping System |
| CN1963141A (en) * | 2006-11-16 | 2007-05-16 | 叶少华 | Hydraulic oil production method and device |
| CN205445556U (en) * | 2015-12-31 | 2016-08-10 | 中国石油天然气股份有限公司 | Suspension type is hydraulic pressure rod -type pump oil production device in pit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968926A (en) * | 2017-05-27 | 2017-07-21 | 乜彦飞 | A kind of packing formula energy saving oil extraction pump |
| CN111561296A (en) * | 2020-04-30 | 2020-08-21 | 中国石油天然气股份有限公司 | Underground switch device and method for controlling pressure in shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |
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| RJ01 | Rejection of invention patent application after publication |