Universidad politcnica del golfo de Mxico (ciencia y tecnologa que trasforman)

STUDENT:Isaas len Lpez

TEACHER:Marcos Antonio Vera Alcocer

SUBJECT:Ingles IXTEMA: Impregnated Bit Application Background And High Engine RPMGRADE: 9no GROUP: A

PARASO, TABASCO; 29 DE SEPTIEMBRE DEL 2015

IntroductionThis article discusses the wells southwest marine region mentions drilling stage 8 "(which usually comprises the Lower Paleocene (PI), Gap - Upper Cretaceous (BTPKS) Middle Cretaceous (KM), Early Cretaceous (KI) and Tithonian (JST)), these data are historically the most difficult due to its complex lithology. Primarily speech in the traditional way in which you can drill stage 8 "using tricone bits. However, the lifetime of these bits is limited.

Therefore, the use of drill bits impregnated had been limited to drilling extra hard and abrasive rocks (granites, flint, tuff, etc.), with resistance Compressive above 22 Kpsi, and it is often considered a special tool, "the last resort" for use when all else has I failed.

However, in recent years It has achieved remarkable progress in technology impregnated bits, and its use It has spread in most companies oil, applying very good results in complex heterogeneous lithologies and formations that will be explained in the report.

This article is based with dedication to Ing. Gumaro Herrera Huerta as the contribution of knowledge based on the oil industry was satisfactory. So performance functions: Field Engineer, Chief of Operation, Head of Technology Development, Head of Design and Superintendent of completion and workover, and finally as head of the Operations Unit Veracruz. "Which today rest in peace"(R.I.P.)

Impregnated Bit Application Background and High Engine RPMFor many years, the use of drill bits impregnated had been limited to drilling extra hard and abrasive rocks (granites, flint, tuff, etc.), with resistance Compressive above 22 Kpsi, and it is often considered a special tool, "the last resort" for use when all else has I failed. However, in recent years It has achieved remarkable progress in technology impregnated drill bits, and its use It has spread in most companies oil, applying very good results in complex and heterogeneous lithologies, such as sand, shale, limestone, etc.

Epitacio Sols Fuentes, Alejandra Hernndez Hernndez, Vctor Arreola Morales, Manuel Orejel lvaro, Carlos H. Gonzlez Ramrez. Southwest Operations Unit, Management of Drilling and Maintenance of Wells, DM (2007) MEXICO, CNH. (They mentioned that in practice the lifetime of the tricone bits 8 "is 350,000 revolutions, drilling in rocks with compressive strength between 15-18 Kpsi. This is a safety measure to prevent the release of any of the cones glitch bearing; however, this practice forces make frequent trips to change auger, which directly impact the time and cost of drilling wells.) however Based on this background, and after a full economic analysis of technical feasibility, with the support of some service companies, so the use of an impregnated bit 8 "by K503BPX version (Figure 2) Kinetic model of Smith, was decided and at General background engine RPM high of 6 "ratio of 2: 3.

The K503 is an impregnated bit of new technology, where cutting structure, handles the hybrid concept, because it is constituted by a matrix of tungsten carbide impregnated with a mixture of grains of natural and synthetic diamond, distributed reason 160-190 scp, diamond reinforced by inserts, pressed at low temperature, and PDC cutters located in the area of the cone. The classification of the inserts and diamond PDC cutters are used IADC 447 and 517. Considering the pressure drop we have with the downhole motor, impregnated drill bits are designed with a fixed TFA 1.5 "-2". Opening channels of cuts eviction follows a radial flux design of considerable width to the conventional diamond bits.

Otherwise the impregnated drill bits are designed for your action plow is cutting and grinding type. It is required when considering the design of the assembly line, a turbine or engine RPM high background, to apply to the drill at least 600 RPM and ROP of the drill is optimal.

Operational Strategy Details of the application in Section 8 "(well Manik 15)

Based on the background of the field and the reference Manik well Manik 1, which stage of 8 "8 drill bits were used, both tricone as PDC (Table 1),He decided to use the impregnated bit K503 Manik Smith in the well 15, to drill from 3,632 m to 3,940 m deep. 308 m were drilled in 176.55 hours for a ROP of 1.74 m / hr...En this application high temperature polymer mud of 1.27 g / cm3 was used. The operating conditions were PSB 6-10 ton, RPM 580-680, 480- 520 gpm output, torque 350-400 amps, from 3.500 to 3.700 psi pump pressure. The KS, KM, KI and JST drilled formations. The auger was evaluated in the field 1-1-WT-A-X-IN-LM-TD.

Cost Analysis Section 8 "hole (15 Manik)

Epitacio Sols Fuentes, Alejandra Hernndez Hernndez, Vctor Arreola Morales, Manuel Orejel lvaro, Carlos H. Gonzlez Ramrez. Southwest Operations Unit, Management of Drilling and Maintenance of Wells, DM (2007) MEXICO,CNH (they mentioned that The savings in drilling section 8 "is calculated based the daily cost of the rig ($ $ 3.100 / hr.). Considering a journey time of 300 m / hr, the savings obtained in this section (using impregnated bit and high engine RPM) with respect Reference wells is $ 520.800 USD).

Detalles de la aplicacin, seccin de 8 (pozo Ixtal 23)For the good results Manik, was considered desirable use the K503 in the well Ixtal 23, which has been preceded well Ixtal 2 where He achieved the best record in the field, their stage of 8 "was drilled with 4 drill bits. The run began at depth of 3,488 m up to the 3,880 m. 392 m were drilled in 184.43 hours, for an average ROP 2.13 m / hr. The application He made with high-polymer mud temperature of 1.26-1.44 gr / cm3. Operating conditions PSB were 6.10 ton, 500- RPM 600, 400-550 gpm output, torque 450-500 amps, pump pressure 3000-3500 psi. They drilled the formations PS, PI, BTPKS, KM, KI, JST. The auger was evaluated Field 2-2-WT-A-X-IN-LM-TD.Cost Analysis Section 8 "hole (Ixtal 23)The savings obtained using the K503 and fund high engine RPM, just in time travel to change drill bits, was 4.31 days. Considering the cost of the platform that drilled the well ($ $ 2.083 / hr), we have a savings of $ 215,000 USD.

Conclusion

In conclusion we observed Based on these two applications of the impregnated auger 8 "and high-revving engine, runs on water-base muds, it is predicted to be an excellent area of opportunity to reduce time and costs for wells fields to provide similar Ixtal Manik and lithology. Since the optimal design operated in these two wells were of great importance so impregnated drill bits marked a major modernization in the oil industry. However auger impregnated according to technological progress could save much more money and investment without the use of engine RPM background

While the use of diamond drill bits new technology is seen as an effective way to reduce time and costs in drilling stage comprising the Cretaceous, there is a gap for a total solution is considered; Therefore, both the field and in the Ixtal Manik, the results were excellent. However, it has to be done to apply it in deeper wells, higher temperatures, which shows a higher percentage of flint and which, by their nature, will have to drill oil based fluids.