CN202250060U

CN202250060U - Sampler barrel for petroleum exploration

Info

Publication number: CN202250060U
Application number: CN201120325316XU
Authority: CN
Inventors: 李秀文
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-25
Filing date: 2011-08-25
Publication date: 2012-05-30
Anticipated expiration: 2021-08-25

Abstract

The utility model relates to a sampling barrel for petroleum exploration. The sampling barrel is provided with a first sampling cavity and a second sampling cavity, wherein one end of the first sampling cavity is connected with one end of the second sampling cavity through a sampling barrel adapter; the inside of each of the first sampling cavity and the second sampling cavity is provided with a sliding piston; each sliding piston is in sealed contact with the corresponding sampling cavity; the other end of the first sampling cavity is connected with a sampling barrel substrate, and the other end of the second sampling cavity is in threaded connection with a barrel plug; and the sampling barrel is provided with a first sample fluid channel for entering the fluid into the first sampling cavity and a second sample fluid channel for entering the fluid into the second sampling cavity. According to the utility model, the sampling barrel adopts the technical scheme, a conduit mode of the traditional sampling barrel is broken through, and fluid flowing channels are directly formed on the barrel wall of the sampling barrel, thus not only is the flow of the fluid improved, but also the mounting and dismounting procedures are simplified.

Description

A kind of sampling tube that is used for oil exploration

Technical field

The utility model relates to a kind of sampling tube, relates in particular to a kind of sampling tube that is used for deep-well oil phospecting apparatus.

Background technology

In the process of oil exploitation, at first need exploration, and the extraction of formation fluid sample, confirm the oil reservoir position accurately.

In the prior art, the sampling tube that uses in the exploration process mostly all is a formation fluid enters into the sampling tube of instrument through the conduit in the middle of the phospecting apparatus, and this formation fluid gets into the mode of inner chamber, and the flow of fluid is restricted.In addition, the sampling tube of prior art is because internal construction is complicated, and the connection of many places conduit, so installation and removal are all more loaded down with trivial details, and is easy to damage the inner conduit connection.

Therefore, it is bigger how to develop a kind of flow, and stable, and the sampling tube of easy installation and removal is that those skilled in the art want the technical problem that solves always.

Summary of the invention

The purpose of the utility model is to provide a kind of sampling tube that can overcome above-mentioned technological deficiency.

To achieve these goals, the described sampling tube that is used for oil exploration of the utility model has first sampling cavity and second sampling cavity, and an end of said first sampling cavity is connected through the sampling tube adapter with an end of second sampling cavity; Said first sampling cavity and the second sampling cavity inside are provided with sliding plunger, sealing contact between each sliding plunger sampling cavity corresponding with it.

Further, the other end of said first sampling cavity is connected with the sampling tube matrix, and the other end of said second sampling cavity is threaded with the sampling tube plug, and the other end of said second sampling cavity is shut by the sampling tube plug; The position that said sampling tube matrix is connected with first sampling cavity has first groove, and the position that said sampling tube adapter is connected with second sampling cavity has second groove.

Further; Said sliding plunger is divided into the first sample flow body cavity and the first slurry flows body cavity with first sampling cavity; The said first sample flow body cavity is the first sampling cavity part away from the sampling tube adapter, and the said first slurry flows body cavity is the first sampling cavity part near the sampling tube adapter; Said another sliding plunger is divided into the second sample flow body cavity and the second slurry flows body cavity with second sampling cavity; The said second sample flow body cavity is the second sampling cavity part near the sampling tube adapter, and the second slurry flows body cavity is the second sampling cavity part away from the sampling tube adapter.

Further; Fluid first inlet and fluid second inlet have been arranged side by side on the said sampling tube matrix; It is got into valve component by first fluid respectively and gets into valve module sealing and control with second fluid, said fluid first enter the mouth with the first sample flow body cavity between have first sample fluidic channels that is communicated with.

Further, offer first passage between said second inlet and first groove, offer second channel on the corresponding first sampling cavity wall in the space that forms between said first groove and first sampling cavity, this passage extends on second groove of adapter always; This second groove offers the third channel that leads to the second sample flow body cavity, and said first passage, second channel, third channel and first groove and second groove have formed second sample fluidic channels on the whole.

Further, the sampling cavity wall that first sampling cavity of described sampling tube is threaded with the sampling tube adapter is provided with first relief hole, and the sampling cavity wall that second sampling cavity is threaded with the sampling tube adapter is provided with second relief hole.

Further, the contact of the sealing described in the aforementioned sampling tube all is to realize through sealing ring.

Further, also offer on the described sampling tube adapter one lead to the first slurry flows body cavity the adapter passage, when sampling tube places exploration oil well following time, the high-pressure slurry fluid gets in first sampling cavity through this passage.

Further, offer on the described sampling tube plug one lead to the second slurry flows body cavity sampling body plug passage, when sampling tube places exploration oil well following time, the high-pressure slurry fluid gets in second sampling cavity through this passage.

Adopted the described sampling tube of technique scheme,, adopted directly on the sampling tube barrel, to form the fluid flow passage, thereby not only improved the flow of fluid, and simplified the installing/dismounting program because it has broken through the conduit pattern of traditional sampling tube.

Description of drawings

Fig. 1 a is the elevation of the utility model one preferred embodiment;

Fig. 1 b is the A-A sectional view of Fig. 1 a illustrated embodiment;

Fig. 1 c is the B-B sectional view of Fig. 1 a illustrated embodiment;

Fig. 2 a is the structural representation of the adapter of preferred embodiment sampling tube shown in Fig. 1 a;

Fig. 2 b is the A-A sectional view of the adapter of preferred embodiment sampling tube shown in Fig. 2 a.

The specific embodiment

For the utility model architectural feature and technique effect better are described, the utility model specific embodiment is done an introduction in detail below in conjunction with accompanying drawing and Reference numeral:

Shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, the described sampling tube of present embodiment has two sampling cavities, is respectively first sampling cavity 5 and second sampling cavity 10, is connected through sampling tube adapter 8 between said first sampling cavity 5 and second sampling cavity 10; Said first sampling cavity 5 all has the tubular structure of internal thread for two ends; The one of which end is connected in sampling tube matrix 2 through internal thread; The other end is connected with second sampling cavity 10 through sampling tube adapter 8, and is similar basically on said second sampling cavity 10 and first sampling cavity, 5 structures, also has the tubular structure of internal thread for two ends; One end is connected in sampling tube adapter 8, and the other end is threaded with sampling tube plug 11.Be provided with sliding plunger 6 in said first sampling cavity 10; Seal between sliding plunger and first sampling cavity and contact (in the present embodiment; Sealing ring 7 sealings have been adopted); And said sliding plunger 6 is divided into two cavitys again with first sampling cavity, and wherein the cavity near sampling tube matrix one end is the first sample flow body cavity 51, is the first slurry flows body cavity 52 near the cavity of adapter 8 one ends; Also be provided with sliding plunger 6 in said second sampling cavity 10; Seal between sliding plunger 6 and second sampling cavity 10 and contact (in the present embodiment; Adopted sealing ring 7 sealings), in like manner, sliding plunger 6 is divided into the second sample flow body cavity 101 and the second slurry flows body cavity 102 with second sampling cavity 10; The said second sample flow body cavity 101 is the cavity near adapter 8, and the second slurry flows body cavity 102 is the cavity near sampling tube plug 11.

Be arranged side by side first fluid on the said sampling tube matrix 2 and got into valve component 1F and second fluid entering valve component 1S; Shown in Fig. 1 a and 1b; Said first fluid gets into valve component 1F and is arranged at fluid first inlet on the pedestal; Be used to seal and control the first sample flow body cavity 51 that sample fluid gets into first sampling cavity; Has first sample fluidic channels 12 that is communicated with between the first sample flow body cavity 51 of said fluid first inlet and first sampling cavity; Slurry fluid gets in the first sample flow body cavity 51 through the first fluid inlet and first sample fluidic channels 12, and the sample fluid that increases gradually supports the moving piston 6 of back skating and moves towards slurry flows body cavity 52, the environment around the adapter passage 18 of the slurry fluid that is squeezed on being arranged at the sampling tube adapter enters; Shown in Fig. 1 a, 1b and 1c; Said second fluid gets into valve module 1S and is arranged at fluid second entrance on the pedestal 2; Be used to seal and control the second sample flow body cavity 101 that sample fluid gets into second sampling cavity, have second sample fluidic channels 13 between the second sample flow body cavity 101 of said fluid second inlet and second sampling cavity.

Specify this second sample fluidic channels below in conjunction with accompanying drawing 1c and Fig. 2 b.Shown in Fig. 1 c; The part that the sampling tube matrix is connected with first sampling cavity has one first groove 134; Form the space between this first groove 134 and first sampling cavity 5; The sampling tube matrix 2 of these both sides, space all contacts with 5 sealings of first sampling cavity; Offer the first passage 131 that is communicated with mud second inlet in this first groove 134, have second channel 132 on the chamber wall of pairing first sampling cavity 5 in gap that forms of this first groove in addition, this second channel 132 extends on second groove 135 of adapter 8 (this groove is the groove of mentioning below) always; The position that said adapter 8 is connected with first sampling cavity 5; Have second groove 135, this second groove forms the space equally and between first sampling cavity 5, and the adapter 8 of these both sides, space contacts with the sealing of first sampling cavity; This second groove 135 offers the third channel 133 of the second sample flow body cavity that leads to second sampling cavity, knows that by aforementioned first passage 131, second channel 132, third channel 133 and first groove 134 and second groove 135 have formed second sample fluidic channels 13 on the whole.The sample fluid that gets into from fluid second inlet gets into second sample cavity via second sample fluidic channels 13; The sample fluid that increases gradually pushes sliding plunger and moves to the second slurry flows body cavity, the environment around the slurry fluid that pressure increases gradually is discharged to through the sampling tube plug passage 19 on the sampling tube plug 11 that is arranged in the second sampling cavity other end.

Further explain adapter passage 18 and sampling tube plug passage 19 below: offer the adapter passage 18 that leads to the first slurry flows body cavity 52 on the circumference of described sampling tube adapter 8; When sampling tube places exploration oil well following time, the high-pressure slurry fluid gets in first sampling cavity through this passage.Offer on the circumference of said sampling tube plug 11 one lead to the second slurry flows body cavity 102 sampling body plug passage 19, when sampling tube places exploration oil well following time, the high-pressure slurry fluid gets in second sampling cavity through this passage.Preferably, the sampling cavity wall that first sampling cavity 5 of the described sampling tube of present embodiment is threaded with sampling tube adapter 8 is provided with first relief hole 141, and is same; The sampling cavity wall that second sampling cavity 10 is threaded with sampling tube adapter 8 is provided with second relief hole 142, and the setting of said relief hole is owing to place under the environment of HTHP when sampling tube, and slurry fluid might enter into the slit that is threaded with slit between the adapter from sampling cavity; Even enter into the Gewindefreistiche 15 that machining screw forms, form very strong pressure, and after this sampling cavity takes out from the shaft bottom of HTHP; Overwhelming majority gases at high pressure are all discharged; But have some gases at high pressure to retain in contact slit and the escape, these gases at high pressure have very strong injury power concerning dismounting person, for fear of this injury; So on the sampling cavity wall, offer relief hole; Sampling tube from high temperature and high pressure environment takes out through after the pressure release, can carry out safe dismounting earlier.

Preferably, the described sealing contact of present embodiment all is to realize sealing through sealing ring.

The described sampling tube of present embodiment not only on flow more existing sampling tube big, and dismounting is safe and convenient to use.

The above only is a kind of preferred implementation of the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle; Can also make some modification and improvement, these also should be regarded as belonging to the protection domain of the utility model.

Claims

1. a sampling tube that is used for oil exploration is characterized in that, has first sampling cavity (5) and second sampling cavity (10), and an end of said first sampling cavity (5) is connected through sampling tube adapter (8) with an end of second sampling cavity (10); Be provided with sliding plunger in said first sampling cavity (5) and second sampling cavity (10), the sampling cavity sealing contact that each sliding plunger is corresponding with it.

2. sampling tube as claimed in claim 1; It is characterized in that; Said sliding plunger is divided into the first sample flow body cavity (51) and the first slurry flows body cavity (52) with first sampling cavity (5); The said first sample flow body cavity (51) is the first sampling cavity part away from the sampling tube adapter, and the said first slurry flows body cavity is the first sampling cavity part near the sampling tube adapter; Said another sliding plunger is divided into the second sample flow body cavity (101) and the second slurry flows body cavity (102) with second sampling cavity (10); The said second sample flow body cavity is the second sampling cavity part near the sampling tube adapter, and the second slurry flows body cavity is the second sampling cavity part away from the sampling tube adapter.

3. sampling tube as claimed in claim 1 is characterized in that, the other end of said first sampling cavity (5) is connected with sampling tube matrix (2), and the other end of said second sampling cavity (10) is shut by sampling tube plug (11); The position that said sampling tube matrix (2) is connected with first sampling cavity (5) has first groove (134), and the position that said sampling tube adapter (8) is connected with second sampling cavity (10) has second groove (135).

4. sampling tube as claimed in claim 3; It is characterized in that; Fluid first inlet and fluid second inlet have been arranged side by side on the said sampling tube matrix (2); It is got into valve component (1F) by first fluid respectively and gets into valve module (1S) sealing and control with second fluid, has the first sample fluid admission passage (12) that is communicated with between said fluid first inlet and the first sample flow body cavity (51).

5. sampling tube as claimed in claim 4; It is characterized in that; Offer first passage (131) between said second inlet and first groove; Offer second channel (132) on the corresponding first sampling cavity wall in the space that forms between said first groove (134) and first sampling cavity (5), this passage (132) extends on second groove (135) of adapter (8) always; This second groove (135) offers the third channel (133) that leads to the second sample flow body cavity (101), and said first passage (131), second channel (132), third channel (133) and first groove (134) have formed the second sample fluid admission passage (13) on the whole with second groove (135).

6. sampling tube as claimed in claim 1; It is characterized in that; The sampling cavity wall that first sampling cavity (5) of described sampling tube is threaded with sampling tube adapter (8) is provided with first relief hole (141), and the sampling cavity wall that second sampling cavity (10) is threaded with sampling tube adapter (8) is provided with second relief hole (142).

7. sampling tube as claimed in claim 1 is characterized in that, described sealing contact all is to realize sealing through sealing ring.

8. sampling tube as claimed in claim 3 is characterized in that, offers the adapter passage (18) that leads to the first slurry flows body cavity (52) on the circumference of described sampling tube adapter (8); Offer the sampling body plug passage (19) that leads to the second slurry flows body cavity (102) on the circumference of said sampling tube plug (11).