Technology and Innovation

1. eRTMAC

OIL’s Real time data monitoring and analysis center is equipped with state-of-the-art technologies to monitor the various drilling operations in real time with advanced visualization platform and cutting-edge sensor technology. It includes transmission of real time critical well data to the command center.

The Centre is monitored round the clock by Skilled Engineers who analyse the data and make real time decisions and ensure the safety and efficiency of drilling operations.

2. Advanced RSS (Rotary Steerable System) with LWD (Logging While Drilling)

The majority of the wells drilled by OIL are highly deviated in nature. The Company is aggressively incorporating cutting edge technologies for enhancing drilling efficiency and performance.

With the incorporation of sophisticated tools such as RSS (Rotary Steerable System) along with Advanced LWD, the drilling efficacies have increased manifold due to precise Steering control, enhanced drilling speed, reduced well tortuosity and accurate well placement along with real- time data acquisition and evaluation.

1. CYCLIC STEAM STIMULATION IN RF:

With successful induction of Cyclic Steam Simulation(CSS) technology in the year 2018, the first of its kind in India, OIL has claimed a breakthrough for extraction of heavy crude oil from Jodhpur Sandstone after almost 27 years of its discovery. Full-scale production of heavy oil discovered from the oldest sedimentary rock of Rajasthan is now becoming a reality with the success of CSS, leading to a highest ever daily crude oil production from Rajasthan Fields of 642 bbls in FY 2023-2024.

CSS is a thermal EOR process in which a predetermined amount of high temperature steam (250-320 deg C) is injected into a producer oil well through VIT (Vacuum Insulated Tubing).

The well heads where CSS application are used are thermally completed capable of resisting the high pressure and high temperature steam. The injection phase into the well continues for about 14 to 21 days based on reservoir injectivity. The well is then shut in for a few days approximately 50% of injection days whereby the heat content of the steam is allowed to soak in the producing formation around the well bore. The steam temperature heats the formation & reservoir fluid around the well bore which in turn reduces the viscosity of the oil and enhances its mobility and production. The well is then put on production phase. Initially the well flows self and when the flow ceases SRP surface unit is installed to recover the stimulated fluid. The production phase continues till the stimulated fluids are produced and when the well returns to its cold production level, the next cycle of CSS begins. The cycle of soak- and-produce, or "Huff-and-Puff" is repeated till the cycle reaches its economic limit.

CSS as a thermal EOR has shown encouraging results in OIL-RF with production enhancement by 40-60% in comparison to cold production. In Nov 2018, the first CSS cycle was carried out in BGW#08 (Pilot thermally completed well). Since then, OIL-RF has successfully carried out CSS in 12 numbers of wells. The total CSS cycles executed till date is 29. Currently, a total of 09 wells have been thermally completed with Vacuum Insulated Tubing (VIT) and Thermal Wellhead. FY 2023-24 has seen the highest number of CSS cycles executed till date in a single financial year, with 3 CSS cycles through our In-House OTSG Boiler and 8 CSS cycles through hired boiler. In FY 2022-23, a total of 9 CSS cycles were executed both through inhouse and hired boiler.

The Cyclic Steam Stimulation has three phases –

• Steam Injection Phase
• Soak Phase
• Production Phase.

2. PLUNGER LIFT IN EASTERN ASSET:

Plunger lift is an economical rig-less artificial lift system applicable to high gas-liquid ratio gas wells and gas lift wells, which was deployed in various marginal fields of Oil India with the primary objective of extending the economic lifespan of the wells. The project involves plunger lift installation, optimization, of plunger lift system for gas wells and intermittent gas lift wells.

Plunger lift system installed in gas and intermittent gas lift wells have benefits like - Improved drawdown and maximized flow potential, Cyclic de-liquification of gas wells, Stabilized gas and liquid flow, Increased overall efficiency of the gas lift system, Resumption of a normal decline curve, Increase the economic lifespan of the well and Delays high CAPEX expense of other artificial lift system methods.

This hybrid project was successfully executed to increase oil, condensate, and gas production in addition to reducing paraffin deposit-related issues, compression horsepower, and overall operating expenditure while maintaining an optimized injection gas rate. This plunger lift project resulted in an overall average of 36% liquid and 83 % gas gains in the candidate wells of the Oil India.

3. POLYMER FLOODING IN SECONDARY RECOVERY :

Oil India Limited identifies Enhanced Oil Recovery (EOR) as one of the strategic focus areas to increase reservoir oil recovery. OIL - in its continued effort for augmenting production from its ageing fields - has been giving thrust since recent past on Enhanced Oil Recovery (EOR).

For evaluating and developing an appropriate chemical EOR strategy for reservoirs in Greater Naharkatia Field, OIL took up a study and initiated steps to carry out polymer flooding on a pilot basis in Naharkatia Field by utilizing two inverted five (5) spot patterns - each pattern consisting of one (1) injection well and four (4) production wells. Two new injector wells have been specifically drilled for this purpose.

Since then, continuous injection of polymer solution is going on in both the injectors using PHPA (Partially Hydrolysed Polyacryl Amide) polymer at a viscosity of 25 cP.

अन्वेषण में, ओआईएल का भूविज्ञान और भूविज्ञान समूह संभावित तेल और गैस भंडारों का सटीक पता लगाने के लिए 3डी भूकंपीय सर्वेक्षण और विस्तृत भूवैज्ञानिक मॉडलिंग जैसी उन्नत भूकंपीय इमेजिंग विधियों का उपयोग करता है। ये प्रौद्योगिकियाँ अन्वेषण के दौरान जोखिम को कम करने और ड्रिलिंग शुरू होने पर संसाधनों का बेहतर उपयोग सुनिश्चित करने में मदद करती हैं।

गुवाहाटी में ओआईएल का केंद्रीकृत प्रमुख संग्रह

ओआईएल में ऊर्जा अध्ययन उत्कृष्टता केंद्र (सीओईईएस) ने नारेंगी, गुवाहाटी में उन्नत प्रयोगशाला सुविधाओं के साथ एक प्रमुख संग्रह का निर्माण शुरू किया है, जो दक्षिण-पूर्व एशिया में अपनी तरह की पहली सुविधा होगी। इस केंद्रीकृत कोर संग्रह के तहत, यह परिकल्पना की गई है कि भारत में संचालित ओआईएल और अन्य एजेंसियों के विभिन्न क्षेत्रों से निकाले गए सभी पारंपरिक कोर और कटिंग को सभी भूवैज्ञानिक और इंजीनियरिंग अध्ययनों की प्रभावकारिता सुनिश्चित करने के लिए संरक्षित किया जाएगा, जो हाइड्रोकार्बन अन्वेषण और क्षेत्र विकास प्रक्रिया को बढ़ाने के लिए बेसिन विश्लेषण और संभावना पहचान के लिए आवश्यक है।

रॉकवॉश जियोडेटा

ऑयल इंडिया लिमिटेड ने मैंसर्स रॉकवॉश जियोडेटा के साथ मिलकर कुओं से चट्टान के नमूनों/ ड्रिल-कटिंग को साफ करने के लिए एक नई पेटेंट तकनीक को हाल ही में लागू किया है। यह तकनीक कुओं से सटीक डेटा का संग्रह सुनिश्चित करती है, जो आधुनिक उपसतह विश्लेषण में अनिश्चितताओं को कम करने के लिए महत्वपूर्ण है।

मैसर्स रॉकवॉश जियोडाटा की प्रौद्योगिकी के प्रमुख घटकों में निम्नलिखित शामिल हैं:

आसान विश्लेषण के लिए ड्रिल कटिंग के नमूनों और कुओं की जानकारी को डिजिटल प्रारूपों में परिवर्तित किया जा रहा है। इस डेटा को आसानी से संग्रहीत, पुनर्प्राप्त और एक्सेस करने के लिए क्लाउड-आधारित डेटाबेस का उपयोग किया जा रहा है।

यह त्वरित निर्णय लेने में मदद करता है और उप-सतह भूविज्ञान और चट्टान गुणों की बेहतर समझ प्रदान करता है।

यह मौजूदा डेटा के साथ आसानी से एकीकृत होता है, जिससे एक पूर्ण और एकीकृत डेटाबेस बनता है।